# -*- coding: UTF8 -*-
class Duplicate(Exception):
    def __init__(self):
        Exception.__init__(self)
class Invalid(Exception):
    def __init__(self):
        Exception.__init__(self)
class GeneralError(Exception):
    def __init__(self):
        Exception.__init__(self)
class Success(Exception):
    def __init__(self):
        Exception.__init__(self)
